Severe dehydration

Severe dehydration means:

• Your mouth and eyes are extremely dry.
• You pass little or no urine for 12 or more hours.
• You do not feel alert, or you cannot think clearly.
• You are too weak or dizzy to stand.
• You may pass out.

Severe dehydration is a medical emergency and requires emergency treatment. Call 911 or other emergency services immediately.

By the time a person becomes severely dehydrated, there is no longer enough fluid in the body to carry enough blood to vital organs. Shock, which is a life-threatening condition, can develop quickly.